<p>Name ______</p><p>Chemical Notation and Balanced Equations</p><p>CHEMICAL NOTATION: Complete the following table</p><p>Chemical Notation Number of Molecules Number of each type of atom per one molecule</p><p>H O 2</p><p>H SO 2 4</p><p>CaCO 3</p><p>C H O 6 12 6</p><p>Ca (PO ) 3 4 2</p><p>Al (SO ) 2 4 3</p><p>Number of Molecules Total number of each type of atoms present</p><p>3H O 2</p><p>5CaCO 3</p><p>3Al (SO ) 2 4 3</p><p>1 This assignment is from the Virtual Cell Biology Classroom on the free science education website Science Prof Online (ScienceProfOnline.com). Visit SPO to find more free science education resources: PowerPoints, practice test & review questions, science photos, videos and more. TYPES OF REACTIONS</p><p>Identify the general type of reaction represented by each equation as decomposition, combination or replacement.</p><p>1. ______NiCl2  Ni + Cl2</p><p>2. ______MgBr2 + 2K  Mg + 2KBr</p><p>3. ______4C + 6H2 + O2  2C2H6O</p><p>4. ______2KClO3 → 2KCl + 3 O2</p><p>5. ______2LiI + Pb2NO3 2LiNO3 + Pbl2</p><p>6. ______2H2O + O2 2H2O2</p><p>7. ______Na2CO3 ---> Na2O + CO2</p><p>Recall that there was more than one term (synonym) to describe each of the basic reaction types we studied (decomposition, combination & replacement).</p><p>8. What are all the terms we used for a combination reaction?</p><p>9. What are all of the terms we used for a decomposition reaction?</p><p>10. What are all the terms we used for a replacement reaction?</p><p>2 3 This assignment is from the Virtual Cell Biology Classroom on the free science education website Science Prof Online (ScienceProfOnline.com). Visit SPO to find more free science education resources: PowerPoints, practice test & review questions, science photos, videos and more. CHEMICAL REACTIONS: Balanced or Not Balanced? Show whether each of the following chemical reaction is balanced or not. Show your work in the same format at the example below.</p><p>Example: Ca +2H2O  Ca(OH)2+ H2</p><p>1 - Ca - 1 </p><p>2 - O - 2 BALANCED!</p><p>4 – H – 4</p><p>1. C12H22O11 + 12O2  12CO2 + 11H2O </p><p>BALANCED or NOT BALANCED </p><p>(circle one and show your work)</p><p>2. 2N + 3H 2NH 2 2 3</p><p>BALANCED or NOT BALANCED </p><p>(circle one and show your work)</p><p>3. Mg + CO 2MgO + C 2 </p><p>BALANCED or NOT BALANCED </p><p>(circle one and show your work)</p><p>4. SiCl + 4H O Si(OH) + 4HCl 4 2 4 </p><p>BALANCED or NOT BALANCED </p><p>(circle one and show your work)</p><p>4</p>